Just noticed today that I am missing a vacuum hose on my '70 LS5. On the AC evaporator there is a vacuum can that is about 4" in diameter and about 31/2" long. This can has two inlets or one inlet and one outlet on the back side (end of can that faces the passenger seat) the bottom inlet has a hose attached that connects to a fitting on the intake manifold. The top inlet has no hose connected. What should this top inlet or outlet be connected to? Thanks for the help! Jerry Wells ACES 5923
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